1
GATE ECE 2000
MCQ (Single Correct Answer)
+2
-0.6
If the Op-Amp in the figure has an input offset voltage of 5 mV and an open-loop voltage gain of 10,000, V0 will be GATE ECE 2000 Analog Circuits - Operational Amplifier Question 57 English
A
0 V
B
5 mV
C
+ 15 V (or) - 15V
D
+50 V (or) -50V
2
GATE ECE 2000
MCQ (Single Correct Answer)
+2
-0.6
In an FM system, a carrier of 100 MHz is modulated by a sinusoidal signal of 5 KHz. The bandwidth by Carson’s approximation is 1 MHz. If y(t) = (modulated waveform)3, then by using Carson’s approximation, the bandwidth of y(t) around 300 MHz and the and the spacing of spectral components are, respectively.
A
3 MHz, 5 KHz
B
1 MHz, 15 KHz
C
3 MHz, 15 KHz
D
1 MHz, 5 KHz
3
GATE ECE 2000
MCQ (Single Correct Answer)
+2
-0.6
In a digital communication system employing Frequency Shift Keying (FSK), the 0 and 1 bit are represented by sine waves of 10 KHz and 25 KHz respectively. These waveforms will be orthogonal for a bit interval of
A
$$45\,\,\mu \sec $$
B
$$200\,\,\mu \sec $$
C
$$50\,\,\mu \sec $$
D
$$250\,\,\mu \sec $$
4
GATE ECE 2000
MCQ (Single Correct Answer)
+2
-0.6
A linear time invariant system has an impulse response e2t, t > 0. If the initial conditions are zero and the input is e3t, the output for t > 0 is
A
e3t - e2t
B
e5t
C
e3t + e2t
D
None
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